摘要
通过对现代黄河三角洲的实地取样和遥感调查,结合历史资料和数据,总结了现代黄河三角洲表层沉积物类型和沉积环境;通过分析黄河改道历史以及黄河大坝修建的时间,将现代黄河三角洲沉积环境划分为7个区,全面地确定了现代黄河三角洲最表层沉积物沉积年代;通过选取黄河三角洲7个时相的Landsat遥感数据,分析了现代黄河三角洲1976—2009年以来的岸线演变,自1976年黄河改道清水沟流路以来,海岸低潮线以上区域面积净减少318.78km2。
Based on the data from field samples and remote sensing survey, combined with historical infor- mation, we summarized the types of surface sediments and sedimentary subenvironments of the modern Yellow River Delta in this paper. According to the history of the Yellow River channel changes and dam building,the delta was subdivided into seven subenvironments. The surface deposits were dated and the shoreline changes from 1976--2009 reestablished with the seven times of Landsat remote sensing data of the delta. Since the Yellow River channel shifted to the current Qingshuigou course in 1976, the coastal area above the low tidal level has decreased by 318.78 km2
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2013年第5期47-52,共6页
Marine Geology & Quaternary Geology
基金
国土资源调查项目(1212010611402)
国土资源部公益性行业基金(201111023)
国土资源部海洋油气资源与环境地质重点实验室基金(MRE2012030)
海洋地质保障工程项目(GZH201200503)
关键词
表层沉积物
沉积环境分区
岸线演变
现代黄河三角洲
the modern Yellow River delta
surface sediments
sedimentary subenvironment
shoreline e-volution
